Voice QoS: ToS-CoS Packet Marking for use with LLQ - Cisco
Note: The command ip qos dscp was introduced in Cisco IOS Software Release 12.2(2)T. It replaces the ip precedence (dial-peer) command. All routers that run on Cisco IOS Software Release 12.2(2)T and earlier can use ip precedence in the dial-peer ......